946 



PROCEEDINGS of the FORTY-SEVENTH MEETING, at Ply- 

 mouth, August 1877, Published at £1 4s. 



Contents : — Thirteenth Keport on Kent's Cavern ; — Second and Third Reports 

 on the Methods employed in the estimation of Potash and Phosphoric Acid in Com- 

 mercial Products ; — Keport on the present state of our Knowledge of the Crustacea 

 (Part III.) ;— Third Report on the Circulation of the Underground Waters in the New 

 Red Sandstone and Permian Formations of England ; — Fifth Report on the Erratic 

 Blocks of England, Wales, and Ireland; — Fourth Report on the Thermal Conducti- 

 vities of certain Rocks ; — Report on Observations of Luminous Meteors, 1876-77 ; — 

 Tenth Report on Underground Temperature ; — Report on the Effect of Propellers on 

 the Steering of Vessels ; — Report on the possibility of establishing a ' Close Time ' 

 for the Protection of Indigenous Animals ; — Report on some Double Compounds of 

 Nickel and Cobalt ;— Fifth Report on the Exploration of the Settle Caves (Victoria 

 Cave) ; — Report on the Datum Level of the Ordnance Survey of Great Britain ; — 

 Report on the Zoological Station at Naples ; — Report of the Anthropometric Com- 

 mittee ; — Report on the Conditions under which Liquid Carbonic Acid exists in 

 Rocks and Minerals. 



Together with the Transactions of the Sections, Prof. Allen Thomson's Address 

 and Recommendations of the Association and its Committees. 



PROCEEDINGS of the FORTY-EIGHTH MEETING, at Dublin, 

 August 1878, Published at £1 4s. 



Contents : — Catalogue of the Oscillation-Frequencies of Solar Rays : — Report 

 on Mr. Babbage's Analytical Machine ; — Third Report of the Committee for deter- 

 mining the Mechanical Equivalent of Heat ; — Report of the Committee for arrang- 

 ing for the taking of certain Observations in India, and Observations on Atmospheric 

 Electricity at Madeira ; — Report on the commencement of Secular Experiments upon 

 the Elasticity of Wires; — Report on the Chemistry of some of the lesser- known 

 Alkaloids, especially Veratria and Bebeerine ; — Report on the best means for the 

 Development of Light from Coal-Gas ; — Fourteenth Report on Kent's Cavern ; — 

 Report on the Fossils in the North-west Highlands of Scotland ; — Fifth Report on 

 the Thermal Conductivities of certain Rocks ; — Report on the possibility of estab- 

 lishing a ' Close Time ' for the Protection of Indigenous Animals ; — Report on the 

 occupation of a Table at the Zoological Station at Naples; — Report of the Anthro- 

 pometric Committee ; — Report on Patent Legislation; — Report on the Use of Steel 

 for Structural Purposes ; — Report on the Geographical Distribution of the Chiro- 

 ptera ; — Recent Improvements in the Port of Dublin ; — Report on Mathematical 

 Tables ; — Eleventh Report on Underground Temperature ; — Report on the Explora- 

 tion of the Fermanagh Caves ; — Sixth Report on the Erratic Blocks of England, 

 Wales, and Ireland ; — Report on the present state of our Knowledge of the Crus- 

 tacea (Part IV.) ; — Report on two Caves in the neighbourhood of Tenby ; — Report on 

 the Stationary Tides in the English Channel and in the North Sea, &c. ; — Second 

 Report on the Datum-level of tlie Ordnance Survey of Great Britain ; — Report on 

 instruments for measuring the Speed of Ships ; — Report of Investigations into a 

 Common Measure of Value in Direct Taxation , — Report on Sunspots and Rainfall ; 

 — Report on Observations of Luminous Meteors ; — Sixth Report on the Exploration 

 of the Settle Caves (Victoria Cave) ; — Report on the Kentish Boring Exploration; — 

 Fourth Report on the Circulation of Underground Waters in the Jurassic, New Red 

 S mdstone, and Permian Formations, with an Appendix on the Filtration of Water 

 through Triassic Sandstone ; — Report on the Effect of Propellers on the Steering of 

 Vessels. 



Together with the Transactions of the Sections, Mr.. Spottiswoode's Address, and 

 Recommendations of the Association and its Committees. 



PROCEEDINGS of the FORTY-NINTH MEETING, at Sheffield, 

 August 1879, Published at £1 4s. 



Contents : — Report on the commencement of Secular Experiments upon the 

 Elasticity of Wires ; — Fourth Report of the Committee for determining the Mechani- 

 cal Equivalent of Heat ; — Report of the Committee for endeavouring to procure 

 reports on the Progress of the Chief Branches of Mathematics and Physics; — Twelfth 



